This is the primary distinctive of this textbook. Reduce the essentials to a minimum so the language can be learned and retained as easily as possible, so that ...
In the above red sentence, distinctive is used as a noun. I have consulted several dictionaries, but cannot find such usage. Is it acceptable?
Last edited by sitifan; 07-Aug-2015 at 11:06.
I need native speakers' help.
Not to me. '...the primary distinctive feature' would be good.